Electron: ProtocolResponse.url reuses the default session cache instead of the registering session

Impact When a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession instead of the session that handled the protocol. A cached response could then be reused across otherwise isolated session partitions. Apps that u...

NPM: Electron: ProtocolResponse.url reuses the default session cache instead of the registering session

NPM: Electron: ProtocolResponse.url reuses the default session cache instead of the registering session vulnerability discovered by ? in WordPress Npm electron versions = 40.0.0-alpha.1, 40.10.6...

CVE-2026-70606 Electron: ProtocolResponse.url reuses the default session cache instead of the registering session

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession...